New Delhi, Nov 03 (ANI): Bharatiya Janata Party (BJP) leader Mukhtar Abbas Naqvi on Sunday said that the inefficiency of the Congress Party is known to everyone. Reacting to Congress' demand to stop opinion polls, he said that they can destroy the messenger, but not the message. The Congress Party has written to the Election Commission (EC) to restrict opinion polls ahead of the elections. The legal department of the Congress Party stated that opinion polls can be misused, and they are not scientific or credible.The opinion polls have been projecting poor show of the Congress in states where Assembly Elections are scheduled to take place.